(Photo: Monika Rittershaus) To mark the 700th anniversary of Dante Aligheri’s death in September 1321, the Aix-en-Provence festival staged the world premier of French composer Pascal Dusapin’s opera “Il Viaggio, Dante,” based upon the poet’s iconic narrative poem “The Divine Comedy.” To say that this is an ambitious undertaking is an understatement, especially as the work has been compressed into {…}